We present mentally efficient algorithms for mentally squaring and cubing 2-digit and 3-digit numbers and for finding cube roots of numbers with 2-digit or 3-digit answers.
© 2011 Mathematical Association of America
Benjamin, Arthur T. Squaring, Cubing, and Cube Rooting. The College Mathematics Journal, Volume 43, Number 1, January 2012 , pp. 58-63(6). DOI: http://dx.doi.org/10.4169/college.math.j.43.1.058